Your selected answer is correct because the absolute value of -9 is 9, and the negative sign outside the absolute number symbols makes it 9 negative, so -9=-9. <em>BUT,</em> we notice that there are choices for "greater than or equal to" and "less than or equal to". Those ones are correct too because it can be one or the other (greater than or equal to, less than or equal to).
Equal to, less than or equal to, greater than or equal to (Choices 3, 4, and 5)
80% is the same as 4/5, so 4/5 of the class= 20. That means that if there was a picture, 4 parts would be shaded, and 1 would not. 1/4 of 20 is 5, so 1 part= 5 people. 5 x 5 = 25. 25 is the answer. :)
